A very disappointing GMAT score

Hi all,

Am doing first post here. First of all, would like to thank all of you here (esp the founder) who posted your views and strategies about GMAT, I have been benefiting from them since I was preparing my 2nd GMAT 2 months ago. I have taken GMAT in January 2009 and the score during then was 650 (49Q 31V). I have scheduled to retake the test in hoping to gain 50 extra points and hit the magical 700+. I believed that I have been working very hard (study till 1am, mock test on every weekend), and at some points my score went over 700+ on a few Manhanttan GMAT tests and Veritas. However, my scores for GMAT Prep were bad, 640 and 610, with the 2nd test taken 2 days before real GMAT test.

I spoke to my GMAT coach and he thought that I was under stress from doing too many mock tests. In fact, each time when I take the GMAT Prep, I could almost hear my heart beats every now and then (I used ear plugs), and I know that I tend to lose focus and went overtime with some questions, leading me into an old scenario which I have to take blind answers in order to catch up with the questions.

I was struggling bout how I could overcome this mental game at the last minute, I even came to a point that I might have to cancel the test or simply plan for the next GMAT test if I don't hit 700 on this one. However, come to think about it, though the test is tomorrow, I don't want to give up yet. But I really need to overcome the stress and just give my best shot tomorrow.

Anyone who has similar experience please share with me your thoughts and advice, would very much appreciate it. Am going out for a jog to free my mind before I take the final mock test this afternoon, hope I would be able to see some of your messages by then.

Thanks and good day.